Detector for regularly-moving transferrers



Aug. 24 1926.

W. H. WAKEFlEL-D DETECTOR FOR REGULARLY MOVING TRANSFERRERS Filed Feb. l, 1926 Patented Aug. 24, 1926.

f STAT i 1,597,712?`y rarest orrics..

WALTER H. WAKnrinLn, or WOR-cesena, ivrassfioirussfrfrs, Assieme To ononrrou sa' KNOWLE'S L O'civr Wenns', or Won-oserait,

nAs'fsAcnnsnTr.

MASSACHUSETTS, A CORPORATION on DETECTOR FOR Ri-EGULARLY-MOVING TRANSFEBRER-S.

Application filedvv Februar in the' transterrer armV and heldin posi` tion by a pivoted latch which isuns'eated by the detector at substantial exhaustion oi Wett, but such devices are subject to objectionable motion either because of the quick descent'V of the' tra-nsferrer arm or becausev oi"- nonf-indicating engagement between the detector andthe latch, and itl is' a further obie'ctot my invention to provide a latch slid-l y I shoulder lli defined b v aT reduced end'y 151 ably mounted the transterrer arm' n ablein-a direetion transverse to the axis of the plunger, thel latch being moved positively by theV detector at substantial iveft eX- haustiony to releasev the' plunger.; In making the latch movable substantially at right angles to thev plunger andjalsoy atV rightl angles to the motion oi' the detector asV the latter *slides along the bohbin saldi l/atcl'i isnot affected by accidental engagement with the detector.

lilith these and otherV objects in view which willv appear as the description proceeds7` my invention resides in the combina# tion' and arrangenientY oi partev hereinafter described and set' forth inthe claims. p

ln the accompanying drawings* wherein' I have s'hoivna."l convenient embodiment ot" my invention,L

Fig. 'lv is' a vertical longitudinal sectionA through the Vbobbin engaging portion of a trans-'ferrer'arm having my invention. applied thereto. showing the transterrer? arm Y on the" doWii'vmicl stroke' with the detector in posit-ion about to be advanced' to the surface to be detected, Y

FigVQ-is`7 tragmentaff viervof portionsV oi' Fig. l lshowing the detector in engagement With a full b'obbin, l

Fig. 3 is a vieu7 similar to Fig. l but showing the detector as it starts to move under the latch at substanial exhaustion of weft,

Fig. 4 is a vieuT similar to Fig. l but showing the detector moved entirely under the nlatch with the transferrel arm in its 10W- lto the transferrer arm.

1', 1926. SeriaLNo'. 85,141,

est position to hold the latch raised as the arm descends andV release the plunger, and

Fig. 5 is a vertical' transverse cross section through the transi'errer arm taken on line 5;.5 of Fig. 3,

Referring to the drawings, I have shown a transferrer a'rm l0 having a forwardly ex@ tending supporting portion 1l and having a shoe l2 to engage the butt of' the bobbiir By means oic mechanism not' shown the trans- 'ferrer arm' l0 is reci'piocated7 being brought doivn to the surface tob'e detected When the shuttle is on the transferrer side oiij the' loom and being raised i'n'iniediat'ely" thc-reaftcr'togive an' indication to thefive'tt replenishing mechanism should a `fresh' supply oi'VA filling be needed. An actuating'v plunger lil is slidably mounted 'in the arm and has a ras at 19 to the transte'r'rer armY and has on one end there'oic a laterally projecting lugY 2O positioned to' engage a yielding pad 21 movably' mounted on ifiXed structure. other end" ot said lever 18 has pivotally7 mounted thereon a's at 22 a Wett detector 23L hav-ing a bobbin engaging'tip 2e.' A pin 25;

car 1iedby'the plunger'engagesthe web 16 when tlie'plunger moves tofthe 'posit-ion shown in Fig. lto limit movement ther-coi".` Tlieleft endvv of the plunger has a notch 26 which deiines a head 27 for al purpose to be set yforth. i

of my present invention?. n

In carryingontmy improvements I' pro-- vide a latch 30 havinga relatively7 long'legv 3l and a' relatively" short' plunger engaging legBQ. Said'latcl'i may conveniently'bedient from bar stock and the lower end O' leg 3:3 is beveled as at 33 so that the chaniferred head 27v ot the plunger can lift said latch against the action ot' leaf spring S secured Said spring 34 is held to the transferrer arm by means of screws 35 one of which retains a clip 36 to which is attached one end Ot tension spring Thev rEhe mattery thus' far described 1s of known construction and Vforms nopart 37. Said spring 37 passes through an opening in lever 18 and is held to the latter by a pin 38. rlhe purpose of the spring` 37 is to hold the lever 18 in the position shown in Fig. l. rlhe upper tace of the yarn engaging tip 2d is inclined as at 39 to insure proper co-action With the long leg 3l of the latch.

ln operation when sufficient yarn for continued Weaving is present the arm l0 Will be loivered on each detecting beat and the tip 2st ,vill be moved into engagement with the bobbin as shown in Fig'. 2. As the wett of the bobbin B is exhausted, however7 tie tip 24 will slide along the bobbin when the transterrcr arm is moved down, assuming tirst the position shown in Fig. 8 when the transterrer arm is slightly above its lovvermost posit-ion and then moving under the leg- 3l ot the latch shown in Fig. il, so t a" further descent cic the arm YlO ivill carry head 2T ot the plunger below the plung engaging beveled end 32 and spring 1T vvii. act to move the plunger 13 to the actuating` position shov-:n in Fig. el.

it occasionally happens that the detector tip 2d will move laterally into engagement with the lower portion ot the latch indicated in dotted lines in Fig. 2 but such motion Will not lessen the e..=ectiveness of the latch to hold the plunge-r. The purpose ot' the inclined 'tace 39 is. to permit the detector 23 to be restored to the position shown in Fig. l Without being caught undei leg Slot' the latch.

From the 'foregoing it will be seen that lf have provided a Wett detector ot the type mounted on a transferrer arm having a plunger retained in inoperative position by means ot a member which slides transversely et the axis ot the. plune'er and is positively raised relatively to the plunger as the trans- Lferrer arm descends on an indicating beat toward an exhausted bobbin, the latch being unaffected by lateral Contact with the detector when the latter has non-indicating' accidental movements when in contact with a substantially full bobbin.

Having thus described my invention it will be apparent that changes and modiiications may be made therein by those skilled in the art Without departing?, from the spirit and scope ot the invention, and l do not Wish to be limited to the details herein closed, but what l claim is:

l. lin a Wett detector :tor looms having a transterrer arm movable toward the Wett CHN supply, a pair of sliding members mounted ing to move one ot said members toward operative position and in holding engagement with the other member, and a iveft detector movable at substantial Wett exhaustion into engagement with one of said members to cause relative movement thereof With respect to the other member to release said other member whereupon said means Will move said released member into operative position.

2. ln a Wett detect-ing mechanism :tor a loom having a transterrer arm movable toward the Wett supply to be detected, a spring pressed member movable with respect to the arm7 a latch slidably mounted on the transi'fei'rer arm and having engagement With the member and moving in a path transverse to the path ot the member, and a detector movable at substantial exhaustion ot vvei't into engagement with the latch to cause relative sliding movement thereof with respect to the arm as the arm moves toward the wett supply to release the member.

ln a Wett detector for looms having a transterrer arm movable toivard the wett supply to be detected7 a plunger slidably mounted on the transterrer arm and tending to move to operative position, a latch slidably mounted on the transterrer arm and having engagement with the plunger to hold said plunger in inoperative position, said latch being mounted for movement in a direction transverse to the axis of the plunger. and a Wett detector movable at substantial Wett exhaustion into engagement With the latch to cause relative move-ment of the latter with respect to the plunger.

l. A Wett detector tor looms having a transterrer arm movable toward the supply to be detected, a pair of sliding members each normally spring pressed toward operative position, said members having holding engagement with each other so that one ot them when in operative position holds the other in inoperative position, and means operative at substantial Wett exhaustion to engage the sliding member normally in operative positioniand move the samerelatively to the other member to release said other member so that the same may move to operative position.

ln testimony whereof have hereunto atliXed my signature.

WALTER n. Warmmiete.

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